Mars Rovers Are “Good Old Girls”

The Mars Exploration Rovers, Spirit and Opportunity have "seemingly" touched us all with their amazing discoveries and their apparently quite different and quirky personalities, but most of all with their durability and resilience. They’ve survived through two rough Martian winters and a couple of nasty dust storms, not to mention persevering through everything the JPL scientists and engineers have asked them to do (climbing hills, descending into craters, for example) and putting on more mileage than anyone ever thought possible ...